Receptacle-closure



W. H. DRAKE.

REGEPTACLE CLOSURE.

APPLICATION FILED APR-19, 19x9.

mmmm Patented Dec, 23,1 19.

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WALTER HENRY DRAKE, F CLEVELAND, OHIO.

RECEPTACLE-GLOSURE.

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$pecificatiqn of Letters Patent.

1 Patented Dec. 23, 1919.

Application filed April 19, 1919. Serial No. 291,417.

To all whom it may concern:

Be it known that I, WALTER HENnY DRAKE, a citizen of the United States,.res1ding at Cleveland, in the county of Cuyahoga and State of Ohio, have invented certain new and useful Improvements in Receptacle Olosures; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to receptacle closures and has for an object to provide an improved closure for use in conjunction with a receptacle made of yielding material.

A further object of the invention is to provide a closure particularly adapted for use in conjunction with receptacles made of fibrous material having means for engaging in improved and reinforcing manner w1th the unfinishedcfibrous edges of the receptacle. j

A further object of the invention is to provide a receptacle closure having an acutely proportioned V-shaped groove adapted to engage wedgingly'withln and without the edges of a container composed of yielding material.

A further object of the invention is to provide a closure for use in conjunction with such receptacles as those produced from pulp and the like, cast or molded integral having unfinished edges said closure having a V-shaped groove co-conform to the unfinished open mouth of the container adapted to fit over the edge thus presented and to wedgingly engage such edge upon the inner and outer surfaces.

With these and other objects in view the invention comprises certain novel arrangements of parts producing such functions as will be hereinafter more fully described and claimed.

7 In the drawing,

Figure 1 shows a. conventional bottle shaped receptacle having one of the improved closures attached thereto.

Fi 2 is an enlarged fragmentary view showlng the manner in which the closure grips the edge of the receptacle.

Like characters of reference indicate corresponding parts throughout the several views.

In the use of receptacles made of pulp or other fibrous material difliculty has been found in producing a closure which would act in conjunction with the fibrous material itself and without the necessity of casting or molding into or fastening or crimping upon the fibrous material, any material other than the fibrous body to receive and retain the closure. Heretofore there has been a practice of securing about the mouth of the receptacle in some manner a metallic or similar ring having a shoulder to receive a closure which said ring is either cast or molded directly into or upon the fibrous receptacle or in some cases is formed separate and secured thereon by crimping or other mechanical means. The use of such a ring or like device has also been found expedient in that the open mouth of such receptacle did not under ordinary conditions present sufficient strength to prevent breakage in handling or the like especially when the receptacle was filled with plastic or liquid material.

The closure disclosed in the present application combines means for engaging directly with the unfinished edge of the mouth or opening of the receptacle engaging upon both the inner and outer surfaces and also forms a strengthening and reinforcing means for such opening or mouth orifice whereby crushing or other fracturing of the receptacle is to a great extent avoided.

As specifically disclosed in the drawing the receptacle is shown at 10 of the present conventional milk bottle shape. Itis to be understood, however, that the present invention of a closure is in no way limited to the exact shape, proportion or size of the receptacle or the utility of such receptacle when used. Also as disclosed the receptacle is intended to represent a receptacle cast or' molded from pulp fiber having at its upper end, or neck or month an unfinished or raw edge.

The closure comprises a disk of any convenient or desired material such for instance as very light weight sheet metal die-stamped to form a ring 11 such ring being cylindrical or tapered as the shape of the receptacle may require, preferably tapered so that by reason of such taper the ring 11 wedges on to the exterior of the neck surface or tightens as it is forced on. Within the ring an inset 12 is produced which performs no function other than that of closing the receptacle but does produce an inner sleeve 13 spaced from the ring 11 by a very acute V-shaped groove which preferably converges to substantially a knife-edge the sleeve 13 being proportioned to fit into the interior of the mouth or neck of the receptacle so that as thegclosure so placed upon the open mouth or neck of the receptacle 4 and forced downwardly will engage both inend of the receptacle is protected against crushin The closure may be made of any approved material either die-stamped as above suggested, cast, molded or otherwise produced the material and manner of producing being immaterial to the present invention, the present invention residing in the article it self in its completed form whereby when used in conjunction with a receptacle of the type disclosed forms with the receptacle a leak proof closure and at the same time adds rigidity and strength to the receptacle. While the closure is not limited to material it will preferably be constructed of various light weight or gage metals whereby there will be a certain amount of yielding of the metal itself to conform to any inequalities in the receptacle upon which it is applied as well as forcing the receptacle to conform to its shape the shaping and conformation between the receptacle and closure being to a great extent mutual whereby a close and substantially air tight closure 1s provided.

In addition to the mechanical advantages of the closure as hereinbefore set forth, the closure has additional and possibly superior advantages looked at from the point of view of sanitation in that it completely covers and protects the pouring edge of the receptacle from contamination by handling, shipping, or exposure to flies or other disease carrying insects or to cats, dogs or other domestic animals, and whereby when the cap is removed the contents may be poured from and over a clean and uncontaminated surface.

I claim:

1. The combination with a receptacle having a tapered neck terminating in an opening presenting yielding edges of a closure having a V-shaped groove for engaging upon and gripping the yielding edges interiorly and fitting said tapered neck exteriorly 2. The combination with a receptacle having an opening presenting compressible edges of a closure having a V-shaped groove proportioned to fit over and wedge upon the compressible edges of the opening.

3. The combination with a receptacle having an opening presenting compressible edges of a closure having a central disk with upstanding circular members carried there by such circular members meeting in a V-shaped groove proportioned to engage over and upon the interior and exterior of the compressible edges of the opening.

4. The combination with a receptacle having an opening presenting compressible edges of a tapered band proportioned to engage upon the exterior urface of the receptacle about the opening, a second band connected with the first mentioned band forming a V-shaped groove the second band being proportioned to fit within the opening of the receptacle and to engage against the inner surface and compress said edges against said first mentioned band whereby said edges are made to conform to the angle of said groove.

In testimony whereof I afiix my signature.

WALTER HENRY DRAKE. 

